1. For Trident, X1 series, P1 series, and any models and seals that can be placed inside the printer without interfering with the printer's movement. 2. With LCD screen, real-time monitoring of internal temperature or humidity or gas concentration, intuitive observation of filtration effect. 3. Use quieter fans and internal design optimization. 4. Filtration efficiency is over 70percent . 5. The printed shell is not included in the delivery list, and users can print it by themselves. Note: Some models may not have enough power to drive the Mini air purifier, so you need to equip yourself with a USB power adapter to connect to an external power source, such as a mobile phone charger adapter, and the adapter voltage must be 5V and the current must not be less than 1A. Due to different batches, there may be differences in product appearance and printed text, which not affect use. Colour:As Shown Material:Activated carbon and metal Package Contents: 1 x Air Purifier Printing Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.